A top Imam and more than 100 other Muslims have attended a Catholic Church mass to worship with Christians in France.

It was a sight to behold as Muslims attended Catholic mass in churches around France on Sunday to show solidarity and sorrow after the brutal jihadist murder of a priest.

AFP reports that more than 100 Muslims were among the 2,000 faithful who packed the 11th-century Gothic cathedral of Rouen near the Normandy town where two jihadi teenagers slit the throat of 85-year-old Father Jacques Hamel.

“I thank you in the name of all Christians,” Rouen Archbishop Dominique Lebrun told them. “In this way you are affirming that you reject death and violence in the name of God.”

The delegation was led by Nice’s top imam Otaman Aissaoui in the southern city where a jihadist carried out a rampage in a truck on Bastille Day, claiming 84 lives and injuring 435 including many Muslims.

“Being united is a response to the act of horror and barbarism,” he said.

It was also the same thing at the Notre Dame church in southwestern Bordeaux were a Muslim delegation, led by the city’s top imam Tareq Oubrou attended the mass.

“It’s an occasion to show (Muslims) that we do not confuse Islam with Islamism, Muslim with jihadist,” said Reverend Jean Rouet.

The Muslims were responding to a call by the French Muslim council CFCM to show their “solidarity and compassion” over the priest’s murder on Tuesday.

Said a woman wearing a beige headscarf who sat in a back pew at a church in central Paris: “I’m a practising Muslim and I came to share my sorrow and tell you that we are brothers and sisters.”

Giving her name only as Sadia, she added softly: “What happened is beyond comprehension.”

L-R: Iman Sami Salem and Imam Mohammed ben Mohammed stand during a mass in the church Santa Maria in trastevere in Rome on July 31, 2016

AFP further reported that the most poignant moment of Sunday’s mass in Rouen was the sign of peace, a regular part of the liturgy when the faithful turn to greet each other in the pews, either shaking hands or kissing.

Archbishop Lebrun used the moment to step into the congregation and greet Muslim leaders attending, as well as three nuns who were at the church in Saint-Etienne-du-Rouvray when Hamel was murdered.

Outside the Rouen cathedral a few policemen and soldiers stood guard but did not conduct searches, seeking to reassure a jittery population after the second jihadist attack in less than a fortnight.

Both of the 19-year-olds attackers, Adel Kermiche and Abdel Malik Petitjean, had been on intelligence services’ radar and had tried to go to Syria.